Improvement in materials for lining stoves, ranges



UNITED STATES PATENT OFFICE.

GEORGE L. EAGAN AND CHARLES M. PLUMB, OF BOSTON, MASSACHUSETTS.-

IMPROVEMENT IN MATERIALS FOR LINING STOVES, RANGES, &c.

Specification forming part of Letters Patent No. 177,228, dated May 9, 1876; application filed November 13, 1875.

To all whom it may concern Be it known that we, GEORGE L. EAGAN- and CHARLES M. PLUMB, of the city of Boston, State of Massachusetts, have invented a new and useful article of manufacture, being a Material for Universal Use for Lining Stoves, Ranges, Furnaces, &c., which compound and its preparation and mode of use are fully set forth in the following specification:

It consists in the preparation of the'following articles, in a dry and pulverized state, united in the proper proportions, and thus furnished. in form suited to easy admixture with water and application while plastic, viz: Fire-clay, six parts; pulverized soap-stone, four parts silicate of soda, two parts; and plaster-of-paris and hydraulic cement, one part.

The method of use is as follows: This compound, thus applied, in a dry and pulverized form, and properly mixed, is simply moistened with sufiicient water to render it plastic, when it is applieddirectlyto the surface to be protected with a trowel, shingle, or other tool, carefully filling all crevices and smoothing the angles. The surface may be corrugated, if desired, with a round stick or other instrument, or left smooth.

When dry the surface may be brushed over with a solution of silicate .of soda for its better protection.

It is recommended that the work be done a night, to allow of a few hours hardening before a fire is built.

The proportions herein specified are not absolute, but are found to afford the best results. The fire-clay may, in part, be that having been once burned, or fire-brick pulverized.

The fire-elay and soap-stone may eitherbe' used separately. Asbestus may also take the place of the soap-stone without essentially changing the nature of the compound, though increasing its cost. Fire-clay alone thus prepared, especially if once burned, willserve a tolerable purpose, but we prefer the compound here named for facility of use, endurance, and perfection.

The difliculty of obtaining fire-brick of the right pattern, and of fitting them when obtained, are evils of every day experience.

The imperfect adjustment so-'con1mon,espethe adjustment and repair of the most essen-' tial article of the household could be placed within the reach of every person, by supplying a material ready made that forms a perfect fire-stone, that is not impaired by keeping, that is adapted to use at any time, and is easily molded, hardening soon, but not too quickly, and hence fitted for any size or form of stove, and for use without previous preparation or skill, the simple directions here given enabling a child even to effectively line any ordinary stove or range. All joints or openings are avoided, and the surface and texture of the material are such as to remedy the evil of clinkers.

The new article is believed to be adapted to universal use by reason of the readiness with which it is procured, the -simple nature of the molding and handling required, and the peri'ectionof the lining when complete, its freedom from obstruction, the ease with which it is molded,its admirable fire-resisting qualities, and its great durability.

We claim as our invention- A new and useful article of manufacture, being a material for lining stoves, furnaces, &c., composed of fire-clay, pulverized soap stone, silicate of soda, and plaster-of-paris and hydraulic cement, compounded and pre-:

pared substantially as and for the purpose described. a

GEORGE L. EAGAN. CHARLES M. PLUMB. Witnesses:

O. B. SOp'rHARD, L. C. SOUTHARD. 

